Southeast Region

The southeast region of Alaska is primarily an archipelago. It tends
to be a graveyard for North Pacific storms, and has the highest precipitation
in Alaska. At low elevations winter precipitation may fall as rain or snow;
and the lowlands are covered with temperate rain forest. Higher elevations
nourish glaciers reaching tidewater. All of the climate stations are at
or near tidewater.

Southeastern Alaska has the longest weather records in the state, with
some data (not shown here) from Sitka reaching back into Russian times.
Unfortunately the station history data are not adequate to allow evaluation
of long-term trends from the area. The annual mean temperature series for
each of the 10 stations is shown below, though individual station pages
are recommended for more than a vague impression. The code is:Haines: red open circlesJuneau (Airport): blue open diamondsJuneau2 (city): green filled circlesJuneau Area:Annex Creek: yellow squaresSitka Japonski (airport): pink squaresSitka Magnetic (city) light blue squaresLittle Port Walter: burgundy trianglesWrangell: dark green squaresKetchikan: dark blue squaresAnnette: brown squares

The adjusted average for the whole region is shown below, with red circles
for individual years and a blue line for the binomially weighted 5-year
running mean. The adjustment corrects for stations entering or leaving the
net, but does not correct for station or observation time changes.